Print this page and try your hand on it.
Apply the four steps previously described:
1. Put a crossing at the middle of each
edge.
|
Remember, each crossing occurs at the middle of
an edge and each edge bears a crossing.
Follow the wall, turn the corner, follow the wall. |
These graphs in K3D format for Steven Abbott's software.
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Christian Mercat
Courriel: mercat@bok.net Answers This document in pdf format. |